Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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The figures are similar. Find the length of the side marked x.
A. 24.5 B. 40 C. 14.4 D. 22.5
Mathematics
A cement mixture calls for 6 pounds of cement for 3 gallons of water. What is the ratio of cement to water? ?
A. 2 to 1 B. 1 to 4 C. 3 to 1 D. 1 to 3 E. 1 to 2
Mathematics
Write as a proportion.7 is to 4 as 70 is to 40
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Solve the problem.A camera costs $370. If the sales tax rate is 6%, how much tax is charged? Round your answer to the nearest cent.
A. $18.50 B. $25.90 C. $222.00 D. $22.20
Mathematics